CJO - Abstract - An improved topographic database for King George Island: compilation, application and outlook

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    An improved topographic database for King George Island: compilation, application and outlook
    Matthias Braun, Jefferson C. Simões, Steffen Vogt, Ulisses F. Bremer, Norbert Blindow, Marion Pfender, Helmut Saurer, Francisco E. Aquino and Francisco A. Ferron (2001).
    Antarctic Science, Volume 13, Issue 01, March 2001 pp 41-52 http://journals.cambridge.org/action/displayAbstract?aid=217053

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Antarctic Science (2001), 13 : 41-52 Cambridge University Press
Copyright © Antarctic Science Ltd 2001
doi:10.1017/S0954102001000074 (About doi)
Available on CJO 27 April 2004 (?)
 
Antarctic Science (2001), 13:1:41-52 Cambridge University Press
Copyright © Antarctic Science Ltd 2001
doi:10.1017/S0954102001000074

Papers—Earth Sciences and Glaciology

An improved topographic database for King George Island: compilation, application and outlook

Matthias Braun a1c1, Jefferson C. Simões a2, Steffen Vogt a1, Ulisses F. Bremer a2, Norbert Blindow a3, Marion Pfender a3, Helmut Saurer a1, Francisco E. Aquino a2 and Francisco A. Ferron a2
a1 Institut für Physische Geographie, Albert-Ludwigs-Universität Freiburg, Werderring 4, D–79085 Freiburg, Germany
a2 Laboratorio de Pesquisas Antárticas e Glaciológicas, Departamento de Geografia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, 91501–970 Porto Alegre, Brazil
a3 Institut für Geophysik, Universität Münster, Corrensstrasse 24, D–48149 Münster, Germany

Article author query
braun m   PubMedGoogle Scholar 
simões j   PubMedGoogle Scholar 
vogt s   PubMedGoogle Scholar 
bremer u   PubMedGoogle Scholar 
blindow n   PubMedGoogle Scholar 
pfender m   PubMedGoogle Scholar 
saurer h   PubMedGoogle Scholar 
aquino f   PubMedGoogle Scholar 
ferron f   PubMedGoogle Scholar 

Abstract

A new topographic database for King George Island, one of the most visited areas in Antarctica, is presented. Data from differential GPS surveys, gained during the summers 1997/98 and 1999/2000, were combined with up to date coastlines from a SPOT satellite image mosaic, and topographic information from maps as well as from the Antarctic Digital Database. A digital terrain model (DTM) was generated using ARC/INFO GIS. From contour lines derived from the DTM and the satellite image mosaic a satellite image map was assembled. Extensive information on data accuracy, the database as well as on the criteria applied to select place names is given in the multilingual map. A lack of accurate topographic information in the eastern part of the island was identified. It was concluded that additional topographic surveying or radar interferometry should be conducted to improve the data quality in this area. In three case studies, the potential applications of the improved topographic database are demonstrated. The first two examples comprise the verification of glacier velocities and the study of glacier retreat from the various input data-sets as well as the use of the DTM for climatological modelling. The last case study focuses on the use of the new digital database as a basic GIS (Geographic Information System) layer for environmental monitoring and management on King George Island.

(Received February 4 2000)
(Accepted September 9 2000)


Key Words: Antarctic Peninsula; Digital Terrain Model; environmental management; Geographic Information System; King George Island; satellite image map.

Correspondence:
c1 matthias.braun@ipg.uni-freiburg.de

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